Answer: A. $1189.97
Step-by-step explanation:
 
        
             
        
        
        
The equation that represents the time spent on the exercise by Serena will be t = 10 + s
<h3>How to compute the equation? </h3>
From the information given, it was stated that Serena does 10 minutes of endurance exercises. and that she plans on doing s minutes of strength exercises.
Therefore, the equation that represents the time spent on the exercise will be t = 10 + s
Learn more about equations on:
brainly.com/question/2972832
 
        
             
        
        
        
Ok so x is the original price and we want to solve if the original price was 48 so x=48. When we substitute this into the equation we get 0.75(48)-0.15(0.75x48). When we simplify this expression we get 30.6. The current price is $30.60. Hope this helps.
        
             
        
        
        
Step-by-step explanation:
Since 



The function has a constant factor so we have a exponential function.
The equation of a exponential function is 

Where a is the initial value and b is the growth factor
The growth factor is 3/2,
The initial value in 32

Plug in 4 for x.
You will get 162
Plug in 5 for x you will get
243.
2013- 162
2014- 243
 
        
             
        
        
        
The answer to this equation is y=-8x-19
I hope this helps!!!!!!!!